I know it has to be less than 12 month cd but can't get a stright anwser when i tried to chat with ally,marcus and others.Anybody know which of the big banks that do this or is this setting when you apply?
Answers

The default with most banks is to let the interest compound, to be withdrawn only when the CD matures.
I know for a fact that Ally gives you the option to have the interest post to another account or to let compound with the CD. I remember that Marcus, Cap1, PSECU, Newtek bank, Memory Bank, NASA CU, and most banks all posted the interest to the CD to compound instead of giving me the option to collect it on a monthly basis.



the only time this year i've noticed this "interest paid out at maturity" feature on the direct cd side was on a 6 month CD from a small credit union local to me



That is not exact but the bulk of it. I paid 99.9014 so just a tiny bit of deferred interest.
I stopped using banks over the last year. Closed a number of them. Still have 2 local credit unions and 2-3 far away. And Ally & Discover & All American. I have less than $50 at all of the above. (Usually $5 for credit unions and a penny at the bank accounts)
But at my age & health, I am trying to avoid using them going forward.
I have some health issues. And since I never graduated from college, my life expectancy is like 8 years less than someone who did. (Guy who was on Tucker last night said that)